A quick-assembly front lock body and a ball lock

Abstract

The utility model discloses a kind of quick installation front lock body and ball lock, and front lock body includes front lock main body, baffle, clamping piece and elastic piece;First plug-in sleeve is provided on front lock main body, and first plug-in sleeve is provided with first clamping hole;Second plug-in sleeve is provided in baffle, and second plug-in sleeve is provided with second clamping hole, baffle is installed on door body, square bar is arranged in second plug-in sleeve and first plug-in sleeve and is connected with front lock main body;Clamping piece is movably arranged in second plug-in sleeve and extends into second clamping hole;Elastic piece is arranged between clamping piece and second plug-in sleeve, for providing driving force for the movement of clamping piece;Clamping piece can extend into first clamping hole when first plug-in sleeve is inserted into second plug-in sleeve, to make front lock main body and baffle connect together;Through the above structure, the plug-in type quick disassembly of front lock body can be realized, the convenience of installation and safety are considered, meet use requirement.

Description

Technical Field

[0001] This utility model relates to the field of locks, and in particular to a quick-install front lock body and ball lock. Background Technology

[0002] Spherical locks are widely used on interior doors. The installation of spherical locks is similar to other door locks, especially the front lock body. Since the front lock body is located outside the door, and security and ease of installation must also be considered, existing spherical locks generally use tie bolts to connect the front and rear lock bodies. Whether installing or removing them, the tie bolts must be operated from inside the door, specifically on the rear lock body, requiring specialized tools such as screwdrivers. This type of spherical lock is inconvenient to install and remove. Therefore, there is an urgent need for a quick-installation front lock body and spherical lock to solve these problems. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a quick-release front lock body and a ball lock.

[0004] The technical solution adopted by one embodiment of this utility model to solve its technical problem is: a quick-install front lock body, including a front lock body, a cover, a snap-fit ​​component and an elastic component;

[0005] The front lock body is provided with a first plug sleeve, and the first plug sleeve is provided with a first locking hole;

[0006] The cover is provided with a second plug sleeve, and the second plug sleeve is provided with a second locking hole. The cover is installed on the door body, and the square rod passes through the second plug sleeve and the first plug sleeve and is connected to the front lock body.

[0007] The snap-fit ​​component is movably disposed within the second plug sleeve and extends into the second snap-fit ​​hole;

[0008] The elastic element is disposed between the snap-fit ​​member and the second insertion sleeve to provide driving force for the movement of the snap-fit ​​member;

[0009] The snap-fit ​​component can extend into the first snap-fit ​​hole when the first snap-fit ​​sleeve is inserted into the second snap-fit ​​sleeve, so that the front lock body is connected to the cover.

[0010] As one of the preferred embodiments of this utility model, the snap-fit ​​component includes an arc-shaped connecting part and a snap-fit ​​part and a guide part disposed on the arc-shaped connecting part. The snap-fit ​​part extends into the second snap hole. A guide groove is provided on the inner side wall of the second plug sleeve. The guide part is disposed in the guide groove. The square rod passes through the lower part of the arc-shaped connecting part.

[0011] As one of the preferred embodiments of this utility model, two guide portions are provided and arranged on both sides of the arc-shaped connecting portion, and two guide grooves are provided and arranged on both sides of the second plug sleeve.

[0012] As one of the preferred embodiments of this utility model, the second plug sleeve is provided with a plurality of positioning holes arranged at intervals in the axial direction, the snap-fit ​​member is provided with a plug hole, the elastic member is strip-shaped, the elastic member is located outside the second plug sleeve, one end of the elastic member is inserted into the plug hole, and the other end of the elastic member is inserted into the positioning hole and abuts against the inner side wall of the second plug sleeve.

[0013] As one of the preferred embodiments of this utility model, the front lock body includes a housing and a clutch seat, a clutch pin, an electronic drive assembly, a mechanical drive assembly, an identification assembly, and a control board disposed within the housing;

[0014] The first connector is connected to the housing;

[0015] The clutch seat is connected to the square rod and has several clutch grooves arranged around its circumference;

[0016] The clutch pin is located inside the housing;

[0017] The electronically controlled drive assembly and the mechanical drive assembly are connected to the clutch pin;

[0018] The identity recognition component is used to identify the user's identity;

[0019] The control board is electrically connected to the electronically controlled drive assembly and the identity recognition assembly, respectively.

[0020] When the clutch pin separates from the clutch groove, it can cause the housing and the square rod to detach, allowing the housing to spin freely; or, when the identity recognition component verifies the identity, the control board can control the electronic drive component to drive the clutch pin to insert into the clutch groove, causing the housing and the square rod to move together, so that the housing can be unlocked by rotating the housing; or, the mechanical drive component can drive the clutch pin to insert into the clutch groove, causing the housing and the square rod to move together, so that the housing can be unlocked by rotating the housing.

[0021] As one of the preferred embodiments of this utility model, the electric control drive assembly includes a motor, a transmission gear set, a rotating shaft, a movable seat, and a helical spring;

[0022] The input end of the transmission gear set is connected to the output shaft of the motor;

[0023] One end of the rotating shaft is connected to the output end of the transmission gear set, and the other end passes through the movable seat. A positioning pin is provided on the rotating shaft.

[0024] The movable seat abuts against the clutch pin;

[0025] The helical spring is mounted on the movable seat and sleeved on the rotating shaft, with the positioning pin extending into the helical channel of the helical spring.

[0026] As one of the preferred embodiments of this utility model, an arc-shaped plate is provided on the movable seat, and the clutch pin abuts against the arc-shaped plate.

[0027] As one of the preferred embodiments of this utility model, the mechanical drive assembly includes a mechanical lock cylinder, a lever, and a rocker arm. One end of the lever is connected to the output end of the mechanical lock cylinder, the middle section of the rocker arm is pivotally connected to the housing, one end of the rocker arm abuts against the other end of the lever, and the other end of the rocker arm abuts against the clutch pin.

[0028] As one of the preferred embodiments of this utility model, the identity recognition component is configured as at least one of a fingerprint recognition module, an electronic password module, a face recognition module, an iris recognition module, and an NFC recognition module.

[0029] A ball lock, comprising the aforementioned front locking body.

[0030] The beneficial effects of this utility model are as follows: A quick-installation front lock body and ball lock, the front lock body includes a front lock main body, a cover, a snap-fit ​​component, and an elastic component; a first insertion sleeve is provided on the front lock main body, and a first snap-fit ​​hole is provided on the first insertion sleeve; a second insertion sleeve is provided inside the cover, and a second snap-fit ​​hole is provided on the second insertion sleeve; the cover is installed on the door body, and a square rod passes through the second insertion sleeve and the first insertion sleeve and is connected to the front lock main body; the snap-fit ​​component is movably disposed in the second insertion sleeve and extends into the second snap-fit ​​hole; the elastic component is disposed between the snap-fit ​​component and the second insertion sleeve to provide driving force for the movement of the snap-fit ​​component; the snap-fit ​​component can extend into the first snap-fit ​​hole when the first insertion sleeve is inserted into the second insertion sleeve, so that the front lock main body and the cover are connected together; the above structure can realize the quick-installation and disassembly of the front lock body by insertion, taking into account both safety and ease of installation, and meeting the needs of use. Attached Figure Description

[0031] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0032] Figure 1 This is a schematic diagram of the structure of a quick-release front lock body;

[0033] Figure 2 A first exploded view of a quick-installation front lock body;

[0034] Figure 3 This is a second exploded view of a quick-release front lock body;

[0035] Figure 4 This is a cross-sectional view of a quick-release front lock body;

[0036] Figure 5 This is a partial structural diagram of a quick-release front lock body;

[0037] Figure 6 This is a schematic diagram of the snap-fit ​​connector. Detailed Implementation

[0038] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0039] In the description of this utility model, "multiple" means two or more; "greater than," "less than," and "exceeding" are understood to exclude the stated number; "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly specifying the number of indicated technical features or their sequential relationship.

[0040] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0041] In this utility model, unless otherwise explicitly defined, the terms "setting," "installing," and "connecting" should be interpreted broadly. For example, they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to a fixed connection, a detachable connection, or an integral molding; they can refer to a mechanical connection; they can refer to the internal connection of two components or the interaction between two components. Those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0042] Reference Figures 1 to 6 This utility model provides a quick-install front lock body, including a front lock body 100, a cover 200, a snap-fit ​​component 300, and an elastic component 400;

[0043] The front lock body 100 is provided with a first plug sleeve 510, and the first plug sleeve 510 is provided with a first locking hole 511;

[0044] The cover 200 is provided with a second plug sleeve 520, and the second plug sleeve 520 is provided with a second locking hole 521. The cover 200 is installed on the door body, and the square rod 600 passes through the second plug sleeve 520 and the first plug sleeve 510 and is connected to the front lock body 100.

[0045] The snap-fit ​​component 300 is movably disposed within the second plug sleeve 520 and extends into the second snap hole 521;

[0046] The elastic element 400 is disposed between the snap-fit ​​member 300 and the second insertion sleeve 520, and is used to provide driving force for the movement of the snap-fit ​​member 300;

[0047] The snap-fit ​​component 300 can extend into the first snap-fit ​​hole 511 when the first snap-fit ​​sleeve 510 is inserted into the second snap-fit ​​sleeve 520, so that the front lock body 100 and the cover 200 are connected together.

[0048] In this utility model, during installation, the snap-fit ​​component 300 and the elastic component 400 are first installed on the second insert sleeve 520 inside the cover 200. Then, the cover 200 is installed on the door body, where the square rod 600 has already passed through the lock cylinder. Next, the front lock body 100 is aligned with the square rod 600, and the first insert sleeve 510 on the front lock body 100 is aligned with the second insert sleeve 520 and inserted until the first insert sleeve 510 abuts against the snap-fit ​​component 300. Continuing to insert will compress the snap-fit ​​component 300 back into the second snap hole 521. When the first insert sleeve 510 moves to the first snap hole 511 and aligns with the snap-fit ​​component 300, the snap-fit ​​component 300 will move outward under the action of the elastic component 400 until the snap-fit ​​component 300 extends into the first snap hole. Within 511, the relative movement of the first plug sleeve 510 and the second plug sleeve 520 is restricted, that is, the front lock body 100 and the cover 200 are connected together. It should be noted that the cover 200 is flared and has an insertion port on the side near the front lock body 100. The first plug sleeve 510 is inserted into the insertion port and inserted into the second plug sleeve 520. Furthermore, the periphery of the cover 200 near the front lock body 100 is fully enclosed. When disassembling the front lock body 100, it is necessary to remove the rear lock body from the inside of the door and then operate the latch 300 through the lock hole on the door body from the inside of the door to retract the latch 300 into the second latch hole 521, thereby releasing the connection between the first plug sleeve 510 and the second plug sleeve 520, and thus quickly disassembling the front lock body 100.

[0049] Reference Figures 2-3 , Figures 5-6 In some embodiments, the snap-fit ​​component 300 includes an arc-shaped connecting portion 310 and a snap-fit ​​portion 320 and a guide portion 330 disposed on the arc-shaped connecting portion 310. The snap-fit ​​portion 320 extends into the second snap-fit ​​hole 521. A guide groove 340 is provided on the inner sidewall of the second plug sleeve 520. The guide portion 330 is disposed in the guide groove 340. The square rod 600 passes through the lower part of the arc-shaped connecting portion 310. Preferably, the guide groove 340 penetrates the inside and outside of the second plug sleeve 520. More preferably, the second plug sleeve 520 and the cover 200 are separate structures.

[0050] Specifically, when installing the snap-fit ​​component 300, the snap-fit ​​component 300 is inserted into the second insert sleeve 520 from one side. When the snap-fit ​​part 320 is opposite to the second snap hole 521, the snap-fit ​​component 300 is moved until the snap-fit ​​part 320 is inserted into the second snap hole 521. In a further embodiment, the second insert sleeve 520 is provided with a plurality of positioning holes 522 arranged axially at intervals, the snap-fit ​​component 300 is provided with an insertion hole 350, and the elastic member 400 is strip-shaped and located outside the second insert sleeve 520. One end of the elastic member 400 is inserted into the insertion hole 350, and the other end of the elastic member 400 is inserted into the positioning hole 522 and abuts against the inner side wall of the second insert sleeve 520, thereby realizing the connection between the second insert sleeve 520, the snap-fit ​​component 300, and the elastic member 400.

[0051] Reference Figures 2-3 , Figures 5-6 In some embodiments, two guide portions 330 are provided and arranged on both sides of the arc-shaped connecting portion 310, and two guide grooves 340 are provided and arranged on both sides of the second plug sleeve 520; these not only provide installation space for the snap-fit ​​member 300, but also guide the movement of the snap-fit ​​member 300. When used in conjunction with the elastic member 400, they can improve the fixing effect on the snap-fit ​​member 300.

[0052] Reference Figures 1-4 In some embodiments, the front lock body 100 includes a housing 110 and a clutch seat 120, a clutch pin 130, an electronic drive assembly 140, a mechanical drive assembly 150, an identification assembly 160, and a control board 170 disposed within the housing 110.

[0053] The first insertion sleeve 510 is connected to the housing 110;

[0054] The clutch seat 120 is connected to the square rod 600 and has several clutch grooves 121 arranged around it in the circumferential direction;

[0055] The clutch pin 130 is movably disposed within the housing 110;

[0056] The electronically controlled drive assembly 140 and the mechanical drive assembly 150 are connected to the clutch pin 130;

[0057] The identity recognition component 160 is used to identify the user's identity;

[0058] The control board 170 is electrically connected to the electronically controlled drive assembly 140 and the identity recognition assembly 160, respectively.

[0059] When the clutch pin 130 is separated from the clutch groove 121, it can cause the housing 110 to detach from the square rod 600, allowing the housing 110 to rotate freely; or, when the identity recognition component 160 verifies the identity, the control board 170 controls the electronic drive component 140 to drive the clutch pin 130 to insert into the clutch groove 121, causing the housing 110 to be linked with the square rod 600, so that the housing 110 can be unlocked by rotating the housing 110; or, the mechanical drive component 150 can drive the clutch pin 130 to insert into the clutch groove 121, causing the housing 110 to be linked with the square rod 600, so that the housing 110 can be unlocked by rotating the housing 110.

[0060] The cooperation of the electronically controlled drive assembly 140, the identity recognition assembly 160, and the control board 170 enables electronically controlled unlocking of the spherical lock. Specifically, before unlocking, the user first authenticates their identity through the identity recognition assembly 160. Preferably, the identity recognition assembly 160 is configured as at least one of a fingerprint recognition module, an electronic password module, a face recognition module, an iris recognition module, and an NFC recognition module, with a fingerprint recognition module being preferred. When fingerprint recognition is successful, the control board 170 sends an unlocking command to the electronically controlled drive assembly 140. After receiving the unlocking command, the electronically controlled drive assembly 140 drives the clutch pin 130 to insert into the clutch slot 121, thereby... The square rod 600 and the clutch seat 120 are connected in synchronous motion. At this time, the housing 110 and the square rod 600 are linked. When the housing 110 is rotated, the entire front lock body 100 and the square rod 600 will rotate together, ultimately unlocking the lock cylinder. Furthermore, the mechanical drive component 150 can realize mechanical unlocking of the ball lock. Specifically, the user can use a mechanical key that is compatible with the mechanical drive component 150 to operate the mechanical drive component 150, which also drives the clutch pin 130 to be inserted into the clutch groove 121. When the housing 110 is rotated, the entire front lock body 100 and the square rod 600 will rotate together, ultimately unlocking the lock cylinder.

[0061] Reference Figures 1-4 In some embodiments, the electronically controlled drive assembly 140 includes a motor, a transmission gear set 142, a rotating shaft 143, a movable seat 144, and a coil spring 145.

[0062] The input end of the transmission gear set 142 is connected to the output shaft of the motor;

[0063] One end of the rotating shaft 143 is connected to the output end of the transmission gear set 142, and the other end passes through the movable seat 144. A positioning pin 146 is provided on the rotating shaft 143.

[0064] The movable seat 144 abuts against the clutch pin 130;

[0065] The helical spring 145 is mounted on the movable seat 144 and sleeved on the rotating shaft 143, and the positioning pin 146 extends into the helical channel 147 of the helical spring 145.

[0066] Specifically, when the identity recognition component 160 verifies and passes the identity verification, the control board 170 will send an unlocking command to the motor. The motor drives the rotating shaft 143 to rotate through the transmission gear set 142. The positioning pin 146 on the rotating shaft 143 rotates synchronously with it. Since the movable seat 144 moves linearly inside the housing 110, and the coil spring 145 moves linearly synchronously with the movable seat 144, the rotational motion of the rotating shaft 143 is converted into the linear motion of the coil spring 145 and the movable seat 144, thereby pushing the clutch pin 130 to be inserted into the clutch groove 121 to complete the engagement.

[0067] Reference Figures 1-4 In some embodiments, the movable seat 144 is provided with an arc-shaped plate 148, and the clutch pin 130 abuts against the arc-shaped plate 148. When the movable seat 144 moves linearly, the arc-shaped plate 148 moves linearly in sync, and pushes the clutch pin 130 to move through its arc-shaped part.

[0068] Reference Figures 1-4 In some embodiments, the mechanical drive assembly 150 includes a mechanical lock cylinder 151, a lever 152, and a rocker arm 153. One end of the lever 152 is connected to the output end of the mechanical lock cylinder 151, the middle section of the rocker arm 153 is pivotally connected to the housing 110, one end of the rocker arm 153 abuts against the other end of the lever 152, and the other end of the rocker arm 153 abuts against the clutch pin 130.

[0069] Specifically, when a user inserts a mechanical key into the mechanical lock cylinder 151 and rotates it, the lever 152 will rotate, which in turn will move one end of the rocker arm 153, causing the rocker arm 153 to rotate around its pivot point with the housing 110. This, in turn, will push the clutch pin 130 to move through the other end of the rocker arm 153. In some other embodiments, in conjunction with the aforementioned electronically controlled drive assembly 140, the other end of the rocker arm 153 is in contact with the movable seat 144, thereby pushing the movable seat 144 to move linearly, which in turn pushes the clutch pin 130 to move.

[0070] This utility model also provides a ball lock, including the aforementioned front lock body.

[0071] The advantages of this utility model are: the above structure enables quick assembly and disassembly of the front lock body through a plug-in connection, taking into account both security and ease of installation, and meeting the needs of use.

[0072] Of course, this utility model is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of this utility model. All such equivalent modifications and substitutions are included within the scope defined by the claims of this application.

Claims

1. A quick-release front lock body, characterized in that: It includes a front lock body (100), a cover (200), a snap-fit ​​component (300), and an elastic component (400); The front lock body (100) is provided with a first plug sleeve (510), and the first plug sleeve (510) is provided with a first locking hole (511). The cover (200) is provided with a second plug sleeve (520), and the second plug sleeve (520) is provided with a second locking hole (521). The cover (200) is installed on the door body. The square rod (600) passes through the second plug sleeve (520) and the first plug sleeve (510) and is connected to the front lock body (100). The snap-fit ​​component (300) is movably disposed within the second plug sleeve (520) and extends into the second snap-fit ​​hole (521); The elastic element (400) is disposed between the snap-fit ​​member (300) and the second insertion sleeve (520) to provide driving force for the movement of the snap-fit ​​member (300); The snap-fit ​​component (300) can extend into the first snap-fit ​​hole (511) when the first snap-fit ​​sleeve (510) is inserted into the second snap-fit ​​sleeve (520) so that the front lock body (100) is connected to the cover (200).

2. The quick-release front lock body according to claim 1, characterized in that: The snap-fit ​​component (300) includes an arc-shaped connecting part (310) and a snap-fit ​​part (320) and a guide part (330) disposed on the arc-shaped connecting part (310). The snap-fit ​​part (320) extends into the second snap hole (521). A guide groove (340) is provided on the inner side wall of the second plug sleeve (520). The guide part (330) is disposed in the guide groove (340). The square rod (600) passes through the lower part of the arc-shaped connecting part (310).

3. A quick-release front lock body according to claim 2, characterized in that: Two guide portions (330) are provided and are arranged on both sides of the arc-shaped connecting portion (310), and two guide grooves (340) are provided and are arranged on both sides of the second plug sleeve (520).

4. The quick-release front lock body according to claim 1, characterized in that: The second plug sleeve (520) is provided with a plurality of positioning holes (522) arranged axially at intervals. The snap-fit ​​member (300) is provided with a plug hole (350). The elastic member (400) is strip-shaped and located outside the second plug sleeve (520). One end of the elastic member (400) is inserted into the plug hole (350), and the other end of the elastic member (400) is inserted into the positioning hole (522) and abuts against the inner sidewall of the second plug sleeve (520).

5. A quick-release front lock body according to claim 1, characterized in that: The front lock body (100) includes a housing (110) and a clutch seat (120), a clutch pin (130), an electronic drive assembly (140), a mechanical drive assembly (150), an identification assembly (160), and a control board (170) disposed in the housing (110). The first plug sleeve (510) is connected to the housing (110); The clutch seat (120) is connected to the square rod (600) and has a plurality of clutch grooves (121) arranged circumferentially thereon. The clutch pin (130) is movably disposed within the housing (110); The electronically controlled drive assembly (140) and the mechanical drive assembly (150) are connected to the clutch pin (130); The identity recognition component (160) is used to identify the user's identity; The control board (170) is electrically connected to the electronically controlled drive assembly (140) and the identity recognition assembly (160) respectively; When the clutch pin (130) is separated from the clutch groove (121), it can cause the housing (110) to detach from the square rod (600) so that the housing (110) can rotate freely; or, when the identity recognition component (160) is verified, the control board (170) controls the electronic drive component (140) to drive the clutch pin (130) to be inserted into the clutch groove (121), so that the housing (110) and the square rod (600) are linked together, so that the housing (110) can be unlocked by rotating the housing (110); or, the mechanical drive component (150) can drive the clutch pin (130) to be inserted into the clutch groove (121), so that the housing (110) and the square rod (600) are linked together, so that the housing (110) can be unlocked by rotating the housing (110).

6. A quick-release front lock body according to claim 5, characterized in that: The electronically controlled drive assembly (140) includes a motor, a transmission gear set (142), a rotating shaft (143), a movable seat (144), and a coil spring (145). The input end of the transmission gear set (142) is connected to the output shaft of the motor; One end of the rotating shaft (143) is connected to the output end of the transmission gear set (142), and the other end passes through the movable seat (144). A positioning post (146) is provided on the rotating shaft (143). The movable seat (144) abuts against the clutch pin (130); The helical spring (145) is mounted on the movable seat (144) and sleeved on the rotating shaft (143), and the positioning pin (146) extends into the helical channel (147) of the helical spring (145).

7. A quick-release front lock body according to claim 6, characterized in that: An arc-shaped plate (148) is provided on the movable seat (144), and the clutch pin (130) abuts against the arc-shaped plate (148).

8. A quick-release front lock body according to claim 5, characterized in that: The mechanical drive assembly (150) includes a mechanical lock cylinder (151), a lever (152), and a rocker arm (153). One end of the lever (152) is connected to the output end of the mechanical lock cylinder (151). The middle section of the rocker arm (153) is pivotally connected to the housing (110). One end of the rocker arm (153) abuts against the other end of the lever (152), and the other end of the rocker arm (153) abuts against the clutch pin (130).

9. A quick-release front lock body according to claim 5, characterized in that: The identity recognition component (160) is configured as at least one of a fingerprint recognition module, an electronic password module, a face recognition module, an iris recognition module, and an NFC recognition module.

10. A ball lock, characterized in that: Includes the front locking body as described in any one of claims 1-9.

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